Problemset - Codeforces

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Codeforces Round #632 (Div. 2)
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dsu

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Problems

#	Name
1332C	K-Complete Word dfs and similar, dsu, greedy, implementation, strings	1500	x7775
1305G	Kuroni and Antihype bitmasks, brute force, dp, dsu, graphs	3300	x167
1307F	Cow and Vacation dfs and similar, dsu, trees	3200	x206
1303F	Number of Components dsu, implementation	2800	x227
1290C	Prefix Enlightenment dfs and similar, dsu, graphs	2400	x844
1292A	NEKO's Maze Game data structures, dsu, implementation	1400	x8116
1278D	Segment Tree data structures, dsu, graphs, trees	2100	x2037
1276B	Two Fairs combinatorics, dfs and similar, dsu, graphs	1900	x2552
1263D	Secret Passwords dfs and similar, dsu, graphs	1500	x5682
1254E	Send Tree to Charlie combinatorics, dfs and similar, dsu, trees	3200	x93
1253F	Cheap Robot binary search, dsu, graphs, shortest paths, trees	2600	x598
1253D	Harmonious Graph constructive algorithms, dfs and similar, dsu, graphs, greedy, sortings	1700	x4440
1242B	0-1 MST dfs and similar, dsu, graphs, sortings	1900	x3362
1245D	Shichikuji and Power Grid dsu, graphs, greedy, shortest paths, trees	1900	x3159
1249B2	Books Exchange (hard version) dfs and similar, dsu, math	1300	x8348
1249B1	Books Exchange (easy version) dsu, math	1000	x11059
1236E	Alice and the Unfair Game binary search, data structures, dp, dsu	2600	x381
1220E	Tourism dfs and similar, dp, dsu, graphs, greedy, trees	2200	x1431
1209G1	Into Blocks (easy version) data structures, dsu, greedy, implementation, two pointers	2000	x1725
1209D	Cow and Snacks dfs and similar, dsu, graphs	1700	x4199
1217F	Forced Online Queries Problem data structures, divide and conquer, dsu, graphs, trees	2800	x213
1213G	Path Queries divide and conquer, dsu, graphs, sortings, trees	2000	x2739
1213F	Unstable String Sort data structures, dfs and similar, dsu, graphs, greedy, implementation, strings	2400	x1316
1184E3	Daleks' Invasion (hard) data structures, dsu, graphs, trees	2500	x275
1176E	Cover it! dfs and similar, dsu, graphs, shortest paths, trees	1700	x4139
1166F	Vicky's Delivery Service data structures, dsu, graphs, hashing	2800	x341
1167C	News Distribution dfs and similar, dsu, graphs	1400	x6873
1156E	Special Segments of Permutation data structures, divide and conquer, dsu, two pointers	2400	x1274
1156D	0-1-Tree dfs and similar, divide and conquer, dp, dsu, trees	2300	x1597
1140F	Extending Set of Points data structures, divide and conquer, dsu	2700	x345
1139C	Edgy Trees dfs and similar, dsu, graphs, math, trees	1500	x5807
1133F2	Spanning Tree with One Fixed Degree constructive algorithms, dfs and similar, dsu, graphs, greedy	2200	x1407
1120D	Power Tree dfs and similar, dp, dsu, graphs, greedy, trees	2400	x399
1130C	Connect brute force, dfs and similar, dsu	1400	x5027
1131F	Asya And Kittens constructive algorithms, dsu	1700	x3687
1131D	Gourmet choice dfs and similar, dp, dsu, graphs, greedy	2000	x2017
1107G	Vasya and Maximum Profit binary search, constructive algorithms, data structures, dp, dsu	2400	x555
1108F	MST Unification binary search, dsu, graphs, greedy	2300	x1283
1095F	Make It Connected dsu, graphs, greedy	2000	x2460
1081D	Maximum Distance dsu, graphs, shortest paths, sortings	1800	x2162
1055B	Alice and Hairdresser dsu, implementation	1300	x3331
1044D	Deduction Queries data structures, dsu	2600	x526
1051G	Distinctification data structures, dsu, greedy	2700	x107
1042F	Leaf Sets data structures, dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x778
1039C	Network Safety dfs and similar, dsu, graphs, math, sortings	2300	x868
1027F	Session in BSU binary search, dfs and similar, dsu, graph matchings, graphs	2400	x696
1023F	Mobile Phone Network dfs and similar, dsu, graphs, trees	2600	x481
1012E	Cycle sort dsu, math	3100	x119
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x2408
1009F	Dominant Indices data structures, dsu, trees	2300	x1347
990G	GCD Counting divide and conquer, dp, dsu, number theory, trees	2400	x752
986C	AND Graph bitmasks, dfs and similar, dsu, graphs	2300	x1231
982D	Shark brute force, data structures, dsu, trees	1900	x1546
979D	Kuro and GCD and XOR and SUM binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees	2200	x993
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x7012
962G	Visible Black Areas data structures, dsu, geometry, trees	2900	x65
959B	Mahmoud and Ehab and the message dsu, greedy, implementation	1300	x5928
936E	Iqea data structures, dfs and similar, divide and conquer, dsu, shortest paths, trees	3300	x110
939D	Love Rescue dfs and similar, dsu, graphs, greedy, strings	1600	x3974
938G	Shortest Path Queries bitmasks, data structures, dsu, graphs	2900	x228
920F	SUM and REPLACE brute force, data structures, dsu, number theory	2000	x2467
920E	Connected Components? data structures, dfs and similar, dsu, graphs	2100	x2425
915F	Imbalance Value of a Tree data structures, dsu, graphs, trees	2500	x889
902B	Coloring a Tree dfs and similar, dsu, greedy	1300	x6204
901C	Bipartite Segments binary search, data structures, dfs and similar, dsu, graphs, two pointers	2500	x747
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2100	x1340
896E	Welcome home, Chtholly data structures, dsu	3100	x319
891C	Envy data structures, dsu, graphs	2500	x988
886C	Petya and Catacombs dsu, greedy, implementation, trees	1300	x4355
884E	Binary Matrix dsu	2500	x352
875F	Royal Questions dsu, graphs, greedy	2500	x629
875B	Sorting the Coins dsu, implementation, sortings, two pointers	1500	x4054
870E	Points, Lines and Ready-made Titles dfs and similar, dsu, graphs, trees	2400	x648
873F	Forbidden Indices dsu, string suffix structures, strings	2300	x502
859E	Desk Disorder combinatorics, dfs and similar, dsu, graphs, trees	2100	x1076
843A	Sorting by Subsequences dfs and similar, dsu, implementation, math, sortings	1400	x4125
817D	Imbalanced Array data structures, divide and conquer, dsu, sortings	2000	x1832
813F	Bipartite Checking data structures, dsu, graphs	2600	x306
811E	Vladik and Entertaining Flags data structures, dsu, graphs	2600	x445
788B	Weird journey combinatorics, constructive algorithms, dfs and similar, dsu, graphs	2200	x1635
771A	Bear and Friendship Condition dfs and similar, dsu, graphs	1500	x7275
778C	Peterson Polyglot brute force, dfs and similar, dsu, hashing, strings, trees	2600	x605
776D	The Door Problem 2-sat, dfs and similar, dsu, graphs	2000	x2612
765D	Artsem and Saunders constructive algorithms, dsu, math	1700	x2047
766D	Mahmoud and a Dictionary data structures, dfs and similar, dp, dsu, graphs	2000	x2016
763E	Timofey and our friends animals data structures, divide and conquer, dsu	2800	x258
763A	Timofey and a tree dfs and similar, dp, dsu, graphs, implementation, trees	1600	x6128
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x5750
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3400	x59
741B	Arpa's weak amphitheater and Mehrdad's valuable Hoses dfs and similar, dp, dsu	1700	x3688
733F	Drivers Dissatisfaction data structures, dsu, graphs, trees	2500	x725
731C	Socks dfs and similar, dsu, graphs, greedy	1600	x4392
723F	st-Spanning Tree dsu, graphs, greedy, implementation	2200	x1023
723D	Lakes in Berland dfs and similar, dsu, graphs, greedy, implementation	1600	x4653
722C	Destroying Array data structures, dsu	1600	x4794
715C	Digit Tree dfs and similar, divide and conquer, dsu, trees	2800	x937
698B	Fix a Tree constructive algorithms, dfs and similar, dsu, graphs, trees	1700	x3816
696E	...Wait for it... data structures, dsu, trees	2900	x253
691D	Swaps in Permutation dfs and similar, dsu, math	1700	x2425
687D	Dividing Kingdom II brute force, data structures, dsu, graphs, sortings	2500	x535

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